A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 4140-01-167-7574
NSN 5905-00-890-8527
NSN 5998-01-111-9801
NSN 6145-01-401-3713
NSN 5975-01-077-5525
NSN 5935-01-233-4108
NSN 7035-01-600-0777
NSN 5920-01-093-1081
NSN 6105-00-805-5802
NSN 5930-00-364-7798
NSN 5835-01-200-7153
NSN 6135-00-182-7008